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4 protocols using anti ki67 pe b56

1

Flow Cytometry and Hematometry Protocol for Cell Analysis

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Flow cytometry was performed with FACS Calibur (BD Biosciences) and FACSJazz (BD Biosciences) as previously described [11 (link),12 (link),22 (link)–24 (link)], and the obtained data were analysed with Cell Quest software (BD Biosciences) and FlowJo software (Tree Star, Inc.). For flow cytometry analysis, anti-CD45-PE (HI30; Biolegend), anti-CD3-APC-Cy7 (HIT3a; Biolegend), anti-CD4-APC (RPA-T4; Biolegend), anti-CD25-APC (BC96; eBioscience), and anti-Ki67-PE (B56; BD Biosciences) antibodies were used. Hematometry was performed with a Celltac α MEK-6450 (Nihon Kohden Co.) as previously described [11 (link),12 (link),23 (link),24 (link),49 (link)]. Live cell sorting was performed using FACSJazz (BD Biosciences) according to the manufacture's procedure. The purity of each population was >94% (see also S7 Fig).
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2

Multiparameter Flow Cytometric Analysis of T Cells

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Multiparameter flow cytometry was performed using peripheral blood, as described previously (Ma et al., 2012 (link); Xia et al., 2009 (link); Zhang et al., 2017b (link); Zheng et al., 2014a (link)). For the frequency of HLA-DR+CD8+ T cells, blood was treated with lysing buffer (BD Biosciences, CA, USA) for 10 min and then incubated with a mixture of flow cytometry antibodies at 4 °C for 30 min. For staining with ki67, surface-labeled cells were further treated with fixation and permeabilization solution (BD Biosciences, CA, USA), followed by perm/wash buffer (BD Biosciences, CA, USA). Cross-reactive flow cytometry human antibodies anti-CD3 APC-Cy7 (clone SP34-2), anti-CD8 PE-Cy7 (clone RPA-T8), anti-HLA-DR APC (clone G46-6), and anti-ki67 PE (B56) were purchased from BD Pharmingen (Franklin Lakes, NJ, USA). Anti-CD4 PerCP-Cy5.5 (clone OKT4) was obtained from Biolegend (San Diego, CA, USA). Flow cytometry acquisition was performed on a BD FACSVerseTM flow cytometer (BD, Franklin Lakes, NJ, USA) and flow cytometric data analysis was performed using FlowJo vX.0.7 (TreeStar, Ashland, OR, USA).
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Comprehensive Phenotypic Analysis of CD8+ T Cells

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Flow cytometric analysis was performed using the following antibodies: anti-glut1 PE (202915) from R&D Systems, anti-KLRG1 PE (MAFA) from Miltenyi Biotec, anti-CD8 PerCP (SK1), anti-CD45RA BV605 (HI100), anti-CD45RA APC (HI1000), anti-CD27 BV421 (O323), anti-CD27 FITC (O323), anti-CD28 BV785 (CD28.2), and anti-CCR7 PECy7 (G043H7) from BioLegend. anti-Ki67 PE (B56; BD Bioscience), anti-p-p53 AF674 (Ser15, 16G8; Cell Signaling) and anti-pAMPK (T172, 40H9; Cell Signaling) were used for intracellular staining using solution AB (ThermoFisher). All samples were analysed using a LSR Fortessa (BD Biosciences) and the resulting data examined using FlowJo software (BD Bioscience). UMAP analysis was performed using FlowJo on down sampled CD8+ T cell populations (5,000 events), with standard parameters (nearest neighbours = 15, minimum distance = 0.5) and clustered via flowSOM.
Magnetic beads were used to isolate CD8+ T cells by positive selection according to the manufacturer’s instructions (Miltenyi Biotec). The purity of T cell subsets was assessed by flow cytometry.
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Multiparametric Flow Cytometry Profiling

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Human mAbs that cross-react with rhesus macaques were used at their optimal concentrations in this study. Anti-CD38-FITC (clone AT-1) was obtained from StemCell Technologies. Anti-PD-1-PE (eBioJ105) and anti-CD27-PE-Cy5 (O323) were obtained from eBioscience. Anti-CCR5-PE (3A9), anti-CD14-APC (M5E2), anti-CD28-APC (CD28.2), anti-CD20-APC-H7/FITC (2H7), anti-CD3-APC-Cy7 (SP34-2), anti-CD4-PerCP-Cy5.5 (L200), anti-CD8-PE-Cy7 (RPA-T8), anti-CD80-FITC (L307.4), anti-CD86-PE (FUN-1), anti-CD95-FITC/PE-Cy7 (DX2), anti-CXCR4-PE-Cy7 (12G5), anti-HLA-DR-APC (G46-6) and anti-Ki67-PE (B56) were all obtained from BD Biosciences. Polyclonal anti-IgD-biotin was obtained from Southern Biotech, and streptavidin-PE-Cy7 was obtained from BioLegend.
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